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A complete kit includes: A sealed vial or glass ampoule of B12 (cyanocobalamin or methylcobalamin) A 3 mL syringe A drawing needle (typically 18-21 gauge) An injecting needle: 22-25 gauge, 1 to 1.5 inch for intramuscular (IM)
A diet full of these nutrients can boost health and might cut down on the need for supplements
SUMMARY Vitamin B12 supplements are safe and effective for most people, although a few people have experienced allergic reactions
Excessive supplementation is generally unnecessary and may cause mild side effects such as flushing or irritation at the injection site
For practitioners the supply chain runs through a registered pharmacy against a valid prescription
Another such example is Metformin , which is a medication for type 2 diabetes, which can also interfere with B12 absorption in the gut
